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ASoC: Convert WM8753 to register via normal device probe
[linux-2.6-block.git] / sound / soc / s3c24xx / neo1973_wm8753.c
CommitLineData
74930bb6
GG		 1/*
2 * neo1973_wm8753.c -- SoC audio for Neo1973
3 *
4 * Copyright 2007 Wolfson Microelectronics PLC.
5 * Author: Graeme Gregory
6 * graeme.gregory@wolfsonmicro.com or linux@wolfsonmicro.com
7 *
8 * This program is free software; you can redistribute it and/or modify it
9 * under the terms of the GNU General Public License as published by the
10 * Free Software Foundation; either version 2 of the License, or (at your
11 * option) any later version.
12 *
74930bb6
GG		 13 */
14
15#include <linux/module.h>
16#include <linux/moduleparam.h>
17#include <linux/timer.h>
18#include <linux/interrupt.h>
19#include <linux/platform_device.h>
20#include <linux/i2c.h>
74930bb6
GG		 21#include <sound/core.h>
22#include <sound/pcm.h>
23#include <sound/soc.h>
24#include <sound/soc-dapm.h>
a2e31a59 25#include <sound/tlv.h>
74930bb6 26
fb2aa074 27#include <asm/mach-types.h>
74930bb6 28#include <asm/hardware/scoop.h>
a09e64fb
RK		 29#include <mach/regs-clock.h>
30#include <mach/regs-gpio.h>
31#include <mach/hardware.h>
32#include <mach/audio.h>
8ba02ace 33#include <linux/io.h>
a09e64fb 34#include <mach/spi-gpio.h>
aa9673cf
HW		 35
36#include <asm/plat-s3c24xx/regs-iis.h>
37
74930bb6
GG		 38#include "../codecs/wm8753.h"
39#include "lm4857.h"
40#include "s3c24xx-pcm.h"
41#include "s3c24xx-i2s.h"
42
1894c59f
TN		 43/* Debugging stuff */
44#define S3C24XX_SOC_NEO1973_WM8753_DEBUG 0
45#if S3C24XX_SOC_NEO1973_WM8753_DEBUG
46#define DBG(x...) printk(KERN_DEBUG "s3c24xx-soc-neo1973-wm8753: " x)
47#else
48#define DBG(x...)
49#endif
50
74930bb6
GG		 51/* define the scenarios */
52#define NEO_AUDIO_OFF 0
53#define NEO_GSM_CALL_AUDIO_HANDSET 1
54#define NEO_GSM_CALL_AUDIO_HEADSET 2
55#define NEO_GSM_CALL_AUDIO_BLUETOOTH 3
56#define NEO_STEREO_TO_SPEAKERS 4
57#define NEO_STEREO_TO_HEADPHONES 5
58#define NEO_CAPTURE_HANDSET 6
59#define NEO_CAPTURE_HEADSET 7
60#define NEO_CAPTURE_BLUETOOTH 8
61
87506549 62static struct snd_soc_card neo1973;
74930bb6
GG		 63static struct i2c_client *i2c;
64
65static int neo1973_hifi_hw_params(struct snd_pcm_substream *substream,
66 struct snd_pcm_hw_params *params)
67{
68 struct snd_soc_pcm_runtime *rtd = substream->private_data;
1992a6fb
LG		 69 struct snd_soc_dai *codec_dai = rtd->dai->codec_dai;
70 struct snd_soc_dai *cpu_dai = rtd->dai->cpu_dai;
74930bb6
GG		 71 unsigned int pll_out = 0, bclk = 0;
72 int ret = 0;
73 unsigned long iis_clkrate;
74
1894c59f
TN		 75 DBG("Entered %s\n", __func__);
76
74930bb6
GG		 77 iis_clkrate = s3c24xx_i2s_get_clockrate();
78
79 switch (params_rate(params)) {
80 case 8000:
81 case 16000:
82 pll_out = 12288000;
83 break;
84 case 48000:
85 bclk = WM8753_BCLK_DIV_4;
86 pll_out = 12288000;
87 break;
88 case 96000:
89 bclk = WM8753_BCLK_DIV_2;
90 pll_out = 12288000;
91 break;
92 case 11025:
93 bclk = WM8753_BCLK_DIV_16;
94 pll_out = 11289600;
95 break;
96 case 22050:
97 bclk = WM8753_BCLK_DIV_8;
98 pll_out = 11289600;
99 break;
100 case 44100:
101 bclk = WM8753_BCLK_DIV_4;
102 pll_out = 11289600;
103 break;
104 case 88200:
105 bclk = WM8753_BCLK_DIV_2;
106 pll_out = 11289600;
107 break;
108 }
109
110 /* set codec DAI configuration */
64105cfd 111 ret = snd_soc_dai_set_fmt(codec_dai,
74930bb6
GG		 112 SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
113 SND_SOC_DAIFMT_CBM_CFM);
114 if (ret < 0)
115 return ret;
116
117 /* set cpu DAI configuration */
64105cfd 118 ret = snd_soc_dai_set_fmt(cpu_dai,
74930bb6
GG		 119 SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
120 SND_SOC_DAIFMT_CBM_CFM);
121 if (ret < 0)
122 return ret;
123
124 /* set the codec system clock for DAC and ADC */
64105cfd 125 ret = snd_soc_dai_set_sysclk(codec_dai, WM8753_MCLK, pll_out,
74930bb6
GG		 126 SND_SOC_CLOCK_IN);
127 if (ret < 0)
128 return ret;
129
130 /* set MCLK division for sample rate */
64105cfd 131 ret = snd_soc_dai_set_clkdiv(cpu_dai, S3C24XX_DIV_MCLK,
8ba02ace 132 S3C2410_IISMOD_32FS);
74930bb6
GG		 133 if (ret < 0)
134 return ret;
135
136 /* set codec BCLK division for sample rate */
64105cfd 137 ret = snd_soc_dai_set_clkdiv(codec_dai, WM8753_BCLKDIV, bclk);
74930bb6
GG		 138 if (ret < 0)
139 return ret;
140
141 /* set prescaler division for sample rate */
64105cfd 142 ret = snd_soc_dai_set_clkdiv(cpu_dai, S3C24XX_DIV_PRESCALER,
8ba02ace 143 S3C24XX_PRESCALE(4, 4));
74930bb6
GG		 144 if (ret < 0)
145 return ret;
146
147 /* codec PLL input is PCLK/4 */
64105cfd 148 ret = snd_soc_dai_set_pll(codec_dai, WM8753_PLL1,
74930bb6
GG		 149 iis_clkrate / 4, pll_out);
150 if (ret < 0)
151 return ret;
152
153 return 0;
154}
155
156static int neo1973_hifi_hw_free(struct snd_pcm_substream *substream)
157{
158 struct snd_soc_pcm_runtime *rtd = substream->private_data;
1992a6fb 159 struct snd_soc_dai *codec_dai = rtd->dai->codec_dai;
74930bb6 160
1894c59f
TN		 161 DBG("Entered %s\n", __func__);
162
74930bb6 163 /* disable the PLL */
64105cfd 164 return snd_soc_dai_set_pll(codec_dai, WM8753_PLL1, 0, 0);
74930bb6
GG		 165}
166
167/*
168 * Neo1973 WM8753 HiFi DAI opserations.
169 */
170static struct snd_soc_ops neo1973_hifi_ops = {
171 .hw_params = neo1973_hifi_hw_params,
172 .hw_free = neo1973_hifi_hw_free,
173};
174
175static int neo1973_voice_hw_params(struct snd_pcm_substream *substream,
176 struct snd_pcm_hw_params *params)
177{
178 struct snd_soc_pcm_runtime *rtd = substream->private_data;
1992a6fb 179 struct snd_soc_dai *codec_dai = rtd->dai->codec_dai;
74930bb6
GG		 180 unsigned int pcmdiv = 0;
181 int ret = 0;
182 unsigned long iis_clkrate;
183
1894c59f
TN		 184 DBG("Entered %s\n", __func__);
185
74930bb6
GG		 186 iis_clkrate = s3c24xx_i2s_get_clockrate();
187
188 if (params_rate(params) != 8000)
189 return -EINVAL;
190 if (params_channels(params) != 1)
191 return -EINVAL;
192
193 pcmdiv = WM8753_PCM_DIV_6; /* 2.048 MHz */
194
195 /* todo: gg check mode (DSP_B) against CSR datasheet */
196 /* set codec DAI configuration */
64105cfd 197 ret = snd_soc_dai_set_fmt(codec_dai, SND_SOC_DAIFMT_DSP_B |
74930bb6
GG		 198 SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBS_CFS);
199 if (ret < 0)
200 return ret;
201
202 /* set the codec system clock for DAC and ADC */
64105cfd 203 ret = snd_soc_dai_set_sysclk(codec_dai, WM8753_PCMCLK, 12288000,
74930bb6
GG		 204 SND_SOC_CLOCK_IN);
205 if (ret < 0)
206 return ret;
207
208 /* set codec PCM division for sample rate */
64105cfd 209 ret = snd_soc_dai_set_clkdiv(codec_dai, WM8753_PCMDIV, pcmdiv);
74930bb6
GG		 210 if (ret < 0)
211 return ret;
212
213 /* configue and enable PLL for 12.288MHz output */
64105cfd 214 ret = snd_soc_dai_set_pll(codec_dai, WM8753_PLL2,
74930bb6
GG		 215 iis_clkrate / 4, 12288000);
216 if (ret < 0)
217 return ret;
218
219 return 0;
220}
221
222static int neo1973_voice_hw_free(struct snd_pcm_substream *substream)
223{
224 struct snd_soc_pcm_runtime *rtd = substream->private_data;
1992a6fb 225 struct snd_soc_dai *codec_dai = rtd->dai->codec_dai;
74930bb6 226
1894c59f
TN		 227 DBG("Entered %s\n", __func__);
228
74930bb6 229 /* disable the PLL */
64105cfd 230 return snd_soc_dai_set_pll(codec_dai, WM8753_PLL2, 0, 0);
74930bb6
GG		 231}
232
233static struct snd_soc_ops neo1973_voice_ops = {
234 .hw_params = neo1973_voice_hw_params,
235 .hw_free = neo1973_voice_hw_free,
236};
237
8ba02ace 238static int neo1973_scenario;
74930bb6
GG		 239
240static int neo1973_get_scenario(struct snd_kcontrol *kcontrol,
241 struct snd_ctl_elem_value *ucontrol)
242{
243 ucontrol->value.integer.value[0] = neo1973_scenario;
244 return 0;
245}
246
247static int set_scenario_endpoints(struct snd_soc_codec *codec, int scenario)
248{
1894c59f
TN		 249 DBG("Entered %s\n", __func__);
250
8ba02ace 251 switch (neo1973_scenario) {
74930bb6 252 case NEO_AUDIO_OFF:
a5302181
LG		 253 snd_soc_dapm_disable_pin(codec, "Audio Out");
254 snd_soc_dapm_disable_pin(codec, "GSM Line Out");
255 snd_soc_dapm_disable_pin(codec, "GSM Line In");
256 snd_soc_dapm_disable_pin(codec, "Headset Mic");
257 snd_soc_dapm_disable_pin(codec, "Call Mic");
74930bb6
GG		 258 break;
259 case NEO_GSM_CALL_AUDIO_HANDSET:
a5302181
LG		 260 snd_soc_dapm_enable_pin(codec, "Audio Out");
261 snd_soc_dapm_enable_pin(codec, "GSM Line Out");
262 snd_soc_dapm_enable_pin(codec, "GSM Line In");
263 snd_soc_dapm_disable_pin(codec, "Headset Mic");
264 snd_soc_dapm_enable_pin(codec, "Call Mic");
74930bb6
GG		 265 break;
266 case NEO_GSM_CALL_AUDIO_HEADSET:
a5302181
LG		 267 snd_soc_dapm_enable_pin(codec, "Audio Out");
268 snd_soc_dapm_enable_pin(codec, "GSM Line Out");
269 snd_soc_dapm_enable_pin(codec, "GSM Line In");
270 snd_soc_dapm_enable_pin(codec, "Headset Mic");
271 snd_soc_dapm_disable_pin(codec, "Call Mic");
74930bb6
GG		 272 break;
273 case NEO_GSM_CALL_AUDIO_BLUETOOTH:
a5302181
LG		 274 snd_soc_dapm_disable_pin(codec, "Audio Out");
275 snd_soc_dapm_enable_pin(codec, "GSM Line Out");
276 snd_soc_dapm_enable_pin(codec, "GSM Line In");
277 snd_soc_dapm_disable_pin(codec, "Headset Mic");
278 snd_soc_dapm_disable_pin(codec, "Call Mic");
74930bb6
GG		 279 break;
280 case NEO_STEREO_TO_SPEAKERS:
a5302181
LG		 281 snd_soc_dapm_enable_pin(codec, "Audio Out");
282 snd_soc_dapm_disable_pin(codec, "GSM Line Out");
283 snd_soc_dapm_disable_pin(codec, "GSM Line In");
284 snd_soc_dapm_disable_pin(codec, "Headset Mic");
285 snd_soc_dapm_disable_pin(codec, "Call Mic");
74930bb6
GG		 286 break;
287 case NEO_STEREO_TO_HEADPHONES:
a5302181
LG		 288 snd_soc_dapm_enable_pin(codec, "Audio Out");
289 snd_soc_dapm_disable_pin(codec, "GSM Line Out");
290 snd_soc_dapm_disable_pin(codec, "GSM Line In");
291 snd_soc_dapm_disable_pin(codec, "Headset Mic");
292 snd_soc_dapm_disable_pin(codec, "Call Mic");
74930bb6
GG		 293 break;
294 case NEO_CAPTURE_HANDSET:
a5302181
LG		 295 snd_soc_dapm_disable_pin(codec, "Audio Out");
296 snd_soc_dapm_disable_pin(codec, "GSM Line Out");
297 snd_soc_dapm_disable_pin(codec, "GSM Line In");
298 snd_soc_dapm_disable_pin(codec, "Headset Mic");
299 snd_soc_dapm_enable_pin(codec, "Call Mic");
74930bb6
GG		 300 break;
301 case NEO_CAPTURE_HEADSET:
a5302181
LG		 302 snd_soc_dapm_disable_pin(codec, "Audio Out");
303 snd_soc_dapm_disable_pin(codec, "GSM Line Out");
304 snd_soc_dapm_disable_pin(codec, "GSM Line In");
305 snd_soc_dapm_enable_pin(codec, "Headset Mic");
306 snd_soc_dapm_disable_pin(codec, "Call Mic");
74930bb6
GG		 307 break;
308 case NEO_CAPTURE_BLUETOOTH:
a5302181
LG		 309 snd_soc_dapm_disable_pin(codec, "Audio Out");
310 snd_soc_dapm_disable_pin(codec, "GSM Line Out");
311 snd_soc_dapm_disable_pin(codec, "GSM Line In");
312 snd_soc_dapm_disable_pin(codec, "Headset Mic");
313 snd_soc_dapm_disable_pin(codec, "Call Mic");
74930bb6
GG		 314 break;
315 default:
a5302181
LG		 316 snd_soc_dapm_disable_pin(codec, "Audio Out");
317 snd_soc_dapm_disable_pin(codec, "GSM Line Out");
318 snd_soc_dapm_disable_pin(codec, "GSM Line In");
319 snd_soc_dapm_disable_pin(codec, "Headset Mic");
320 snd_soc_dapm_disable_pin(codec, "Call Mic");
74930bb6
GG		 321 }
322
a5302181 323 snd_soc_dapm_sync(codec);
74930bb6
GG		 324
325 return 0;
326}
327
328static int neo1973_set_scenario(struct snd_kcontrol *kcontrol,
329 struct snd_ctl_elem_value *ucontrol)
330{
331 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
332
1894c59f
TN		 333 DBG("Entered %s\n", __func__);
334
74930bb6
GG		 335 if (neo1973_scenario == ucontrol->value.integer.value[0])
336 return 0;
337
338 neo1973_scenario = ucontrol->value.integer.value[0];
339 set_scenario_endpoints(codec, neo1973_scenario);
340 return 1;
341}
342
343static u8 lm4857_regs[4] = {0x00, 0x40, 0x80, 0xC0};
344
345static void lm4857_write_regs(void)
346{
1894c59f
TN		 347 DBG("Entered %s\n", __func__);
348
74930bb6
GG		 349 if (i2c_master_send(i2c, lm4857_regs, 4) != 4)
350 printk(KERN_ERR "lm4857: i2c write failed\n");
351}
352
353static int lm4857_get_reg(struct snd_kcontrol *kcontrol,
354 struct snd_ctl_elem_value *ucontrol)
355{
8ba02ace 356 int reg = kcontrol->private_value & 0xFF;
74930bb6
GG		 357 int shift = (kcontrol->private_value >> 8) & 0x0F;
358 int mask = (kcontrol->private_value >> 16) & 0xFF;
359
1894c59f
TN		 360 DBG("Entered %s\n", __func__);
361
74930bb6
GG		 362 ucontrol->value.integer.value[0] = (lm4857_regs[reg] >> shift) & mask;
363 return 0;
364}
365
366static int lm4857_set_reg(struct snd_kcontrol *kcontrol,
367 struct snd_ctl_elem_value *ucontrol)
368{
369 int reg = kcontrol->private_value & 0xFF;
370 int shift = (kcontrol->private_value >> 8) & 0x0F;
371 int mask = (kcontrol->private_value >> 16) & 0xFF;
372
8ba02ace 373 if (((lm4857_regs[reg] >> shift) & mask) ==
74930bb6
GG		 374 ucontrol->value.integer.value[0])
375 return 0;
376
8ba02ace 377 lm4857_regs[reg] &= ~(mask << shift);
74930bb6
GG		 378 lm4857_regs[reg] |= ucontrol->value.integer.value[0] << shift;
379 lm4857_write_regs();
380 return 1;
381}
382
383static int lm4857_get_mode(struct snd_kcontrol *kcontrol,
384 struct snd_ctl_elem_value *ucontrol)
385{
386 u8 value = lm4857_regs[LM4857_CTRL] & 0x0F;
387
1894c59f
TN		 388 DBG("Entered %s\n", __func__);
389
74930bb6
GG		 390 if (value)
391 value -= 5;
392
393 ucontrol->value.integer.value[0] = value;
394 return 0;
395}
396
397static int lm4857_set_mode(struct snd_kcontrol *kcontrol,
398 struct snd_ctl_elem_value *ucontrol)
399{
400 u8 value = ucontrol->value.integer.value[0];
401
1894c59f
TN		 402 DBG("Entered %s\n", __func__);
403
74930bb6
GG		 404 if (value)
405 value += 5;
406
407 if ((lm4857_regs[LM4857_CTRL] & 0x0F) == value)
408 return 0;
409
410 lm4857_regs[LM4857_CTRL] &= 0xF0;
411 lm4857_regs[LM4857_CTRL] |= value;
412 lm4857_write_regs();
413 return 1;
414}
415
416static const struct snd_soc_dapm_widget wm8753_dapm_widgets[] = {
417 SND_SOC_DAPM_LINE("Audio Out", NULL),
418 SND_SOC_DAPM_LINE("GSM Line Out", NULL),
419 SND_SOC_DAPM_LINE("GSM Line In", NULL),
420 SND_SOC_DAPM_MIC("Headset Mic", NULL),
421 SND_SOC_DAPM_MIC("Call Mic", NULL),
422};
423
424
8f3112d7 425static const struct snd_soc_dapm_route dapm_routes[] = {
74930bb6
GG		 426
427 /* Connections to the lm4857 amp */
428 {"Audio Out", NULL, "LOUT1"},
429 {"Audio Out", NULL, "ROUT1"},
430
431 /* Connections to the GSM Module */
432 {"GSM Line Out", NULL, "MONO1"},
433 {"GSM Line Out", NULL, "MONO2"},
434 {"RXP", NULL, "GSM Line In"},
435 {"RXN", NULL, "GSM Line In"},
436
437 /* Connections to Headset */
438 {"MIC1", NULL, "Mic Bias"},
439 {"Mic Bias", NULL, "Headset Mic"},
440
441 /* Call Mic */
442 {"MIC2", NULL, "Mic Bias"},
443 {"MIC2N", NULL, "Mic Bias"},
444 {"Mic Bias", NULL, "Call Mic"},
445
446 /* Connect the ALC pins */
447 {"ACIN", NULL, "ACOP"},
74930bb6
GG		 448};
449
450static const char *lm4857_mode[] = {
451 "Off",
452 "Call Speaker",
453 "Stereo Speakers",
454 "Stereo Speakers + Headphones",
455 "Headphones"
456};
457
458static const struct soc_enum lm4857_mode_enum[] = {
459 SOC_ENUM_SINGLE_EXT(ARRAY_SIZE(lm4857_mode), lm4857_mode),
460};
461
462static const char *neo_scenarios[] = {
463 "Off",
464 "GSM Handset",
465 "GSM Headset",
466 "GSM Bluetooth",
467 "Speakers",
468 "Headphones",
469 "Capture Handset",
470 "Capture Headset",
471 "Capture Bluetooth"
472};
473
474static const struct soc_enum neo_scenario_enum[] = {
8ba02ace 475 SOC_ENUM_SINGLE_EXT(ARRAY_SIZE(neo_scenarios), neo_scenarios),
74930bb6
GG		 476};
477
a2e31a59
MM		 478static const DECLARE_TLV_DB_SCALE(stereo_tlv, -4050, 150, 0);
479static const DECLARE_TLV_DB_SCALE(mono_tlv, -3450, 150, 0);
480
74930bb6 481static const struct snd_kcontrol_new wm8753_neo1973_controls[] = {
a2e31a59
MM		 482 SOC_SINGLE_EXT_TLV("Amp Left Playback Volume", LM4857_LVOL, 0, 31, 0,
483 lm4857_get_reg, lm4857_set_reg, stereo_tlv),
484 SOC_SINGLE_EXT_TLV("Amp Right Playback Volume", LM4857_RVOL, 0, 31, 0,
485 lm4857_get_reg, lm4857_set_reg, stereo_tlv),
486 SOC_SINGLE_EXT_TLV("Amp Mono Playback Volume", LM4857_MVOL, 0, 31, 0,
487 lm4857_get_reg, lm4857_set_reg, mono_tlv),
74930bb6
GG		 488 SOC_ENUM_EXT("Amp Mode", lm4857_mode_enum[0],
489 lm4857_get_mode, lm4857_set_mode),
490 SOC_ENUM_EXT("Neo Mode", neo_scenario_enum[0],
491 neo1973_get_scenario, neo1973_set_scenario),
492 SOC_SINGLE_EXT("Amp Spk 3D Playback Switch", LM4857_LVOL, 5, 1, 0,
493 lm4857_get_reg, lm4857_set_reg),
494 SOC_SINGLE_EXT("Amp HP 3d Playback Switch", LM4857_RVOL, 5, 1, 0,
495 lm4857_get_reg, lm4857_set_reg),
496 SOC_SINGLE_EXT("Amp Fast Wakeup Playback Switch", LM4857_CTRL, 5, 1, 0,
497 lm4857_get_reg, lm4857_set_reg),
498 SOC_SINGLE_EXT("Amp Earpiece 6dB Playback Switch", LM4857_CTRL, 4, 1, 0,
499 lm4857_get_reg, lm4857_set_reg),
500};
501
502/*
503 * This is an example machine initialisation for a wm8753 connected to a
504 * neo1973 II. It is missing logic to detect hp/mic insertions and logic
505 * to re-route the audio in such an event.
506 */
507static int neo1973_wm8753_init(struct snd_soc_codec *codec)
508{
509 int i, err;
510
1894c59f
TN		 511 DBG("Entered %s\n", __func__);
512
74930bb6 513 /* set up NC codec pins */
b1cbc21c
MB		 514 snd_soc_dapm_nc_pin(codec, "LOUT2");
515 snd_soc_dapm_nc_pin(codec, "ROUT2");
516 snd_soc_dapm_nc_pin(codec, "OUT3");
517 snd_soc_dapm_nc_pin(codec, "OUT4");
518 snd_soc_dapm_nc_pin(codec, "LINE1");
519 snd_soc_dapm_nc_pin(codec, "LINE2");
74930bb6 520
74930bb6 521 /* Add neo1973 specific widgets */
8f3112d7
MB		 522 snd_soc_dapm_new_controls(codec, wm8753_dapm_widgets,
523 ARRAY_SIZE(wm8753_dapm_widgets));
74930bb6 524
e8089948
JB		 525 /* set endpoints to default mode */
526 set_scenario_endpoints(codec, NEO_AUDIO_OFF);
527
74930bb6
GG		 528 /* add neo1973 specific controls */
529 for (i = 0; i < ARRAY_SIZE(wm8753_neo1973_controls); i++) {
530 err = snd_ctl_add(codec->card,
531 snd_soc_cnew(&wm8753_neo1973_controls[i],
532 codec, NULL));
533 if (err < 0)
534 return err;
535 }
536
8f3112d7
MB		 537 /* set up neo1973 specific audio routes */
538 err = snd_soc_dapm_add_routes(codec, dapm_routes,
539 ARRAY_SIZE(dapm_routes));
74930bb6 540
a5302181 541 snd_soc_dapm_sync(codec);
74930bb6
GG		 542 return 0;
543}
544
545/*
546 * BT Codec DAI
547 */
1992a6fb 548static struct snd_soc_dai bt_dai = {
8ba02ace 549 .name = "Bluetooth",
74930bb6 550 .id = 0,
74930bb6
GG		 551 .playback = {
552 .channels_min = 1,
553 .channels_max = 1,
554 .rates = SNDRV_PCM_RATE_8000,
555 .formats = SNDRV_PCM_FMTBIT_S16_LE,},
556 .capture = {
557 .channels_min = 1,
558 .channels_max = 1,
559 .rates = SNDRV_PCM_RATE_8000,
560 .formats = SNDRV_PCM_FMTBIT_S16_LE,},
561};
562
563static struct snd_soc_dai_link neo1973_dai[] = {
564{ /* Hifi Playback - for similatious use with voice below */
565 .name = "WM8753",
566 .stream_name = "WM8753 HiFi",
567 .cpu_dai = &s3c24xx_i2s_dai,
568 .codec_dai = &wm8753_dai[WM8753_DAI_HIFI],
569 .init = neo1973_wm8753_init,
570 .ops = &neo1973_hifi_ops,
571},
572{ /* Voice via BT */
573 .name = "Bluetooth",
574 .stream_name = "Voice",
575 .cpu_dai = &bt_dai,
576 .codec_dai = &wm8753_dai[WM8753_DAI_VOICE],
577 .ops = &neo1973_voice_ops,
578},
579};
580
87506549 581static struct snd_soc_card neo1973 = {
74930bb6 582 .name = "neo1973",
87689d56 583 .platform = &s3c24xx_soc_platform,
74930bb6
GG		 584 .dai_link = neo1973_dai,
585 .num_links = ARRAY_SIZE(neo1973_dai),
586};
587
74930bb6 588static struct snd_soc_device neo1973_snd_devdata = {
87506549 589 .card = &neo1973,
74930bb6 590 .codec_dev = &soc_codec_dev_wm8753,
74930bb6
GG		 591};
592
b6471305
JD		 593static int lm4857_i2c_probe(struct i2c_client *client,
594 const struct i2c_device_id *id)
74930bb6 595{
1894c59f
TN		 596 DBG("Entered %s\n", __func__);
597
f9d1ab39
JB		 598 i2c = client;
599
74930bb6 600 lm4857_write_regs();
74930bb6
GG		 601 return 0;
602}
603
b6471305 604static int lm4857_i2c_remove(struct i2c_client *client)
74930bb6 605{
1894c59f
TN		 606 DBG("Entered %s\n", __func__);
607
f9d1ab39
JB		 608 i2c = NULL;
609
b6471305 610 return 0;
74930bb6
GG		 611}
612
fd403dc8
GG		 613static u8 lm4857_state;
614
615static int lm4857_suspend(struct i2c_client *dev, pm_message_t state)
616{
1894c59f
TN		 617 DBG("Entered %s\n", __func__);
618
fd403dc8
GG		 619 dev_dbg(&dev->dev, "lm4857_suspend\n");
620 lm4857_state = lm4857_regs[LM4857_CTRL] & 0xf;
621 if (lm4857_state) {
622 lm4857_regs[LM4857_CTRL] &= 0xf0;
623 lm4857_write_regs();
624 }
625 return 0;
626}
627
628static int lm4857_resume(struct i2c_client *dev)
629{
1894c59f
TN		 630 DBG("Entered %s\n", __func__);
631
fd403dc8
GG		 632 if (lm4857_state) {
633 lm4857_regs[LM4857_CTRL] |= (lm4857_state & 0x0f);
634 lm4857_write_regs();
635 }
636 return 0;
637}
638
639static void lm4857_shutdown(struct i2c_client *dev)
640{
1894c59f
TN		 641 DBG("Entered %s\n", __func__);
642
fd403dc8
GG		 643 dev_dbg(&dev->dev, "lm4857_shutdown\n");
644 lm4857_regs[LM4857_CTRL] &= 0xf0;
645 lm4857_write_regs();
646}
647
b6471305 648static const struct i2c_device_id lm4857_i2c_id[] = {
df20cf92 649 { "neo1973_lm4857", 0 },
b6471305
JD		 650 { }
651};
652
74930bb6
GG		 653static struct i2c_driver lm4857_i2c_driver = {
654 .driver = {
655 .name = "LM4857 I2C Amp",
656 .owner = THIS_MODULE,
657 },
fd403dc8
GG		 658 .suspend = lm4857_suspend,
659 .resume = lm4857_resume,
660 .shutdown = lm4857_shutdown,
b6471305
JD		 661 .probe = lm4857_i2c_probe,
662 .remove = lm4857_i2c_remove,
663 .id_table = lm4857_i2c_id,
74930bb6
GG		 664};
665
666static struct platform_device *neo1973_snd_device;
667
668static int __init neo1973_init(void)
669{
670 int ret;
671
1894c59f
TN		 672 DBG("Entered %s\n", __func__);
673
fb2aa074
MB		 674 if (!machine_is_neo1973_gta01()) {
675 printk(KERN_INFO
676 "Only GTA01 hardware supported by ASoC driver\n");
677 return -ENODEV;
678 }
679
74930bb6
GG		 680 neo1973_snd_device = platform_device_alloc("soc-audio", -1);
681 if (!neo1973_snd_device)
682 return -ENOMEM;
683
684 platform_set_drvdata(neo1973_snd_device, &neo1973_snd_devdata);
685 neo1973_snd_devdata.dev = &neo1973_snd_device->dev;
686 ret = platform_device_add(neo1973_snd_device);
687
d280289e 688 if (ret) {
74930bb6 689 platform_device_put(neo1973_snd_device);
d280289e
JD		 690 return ret;
691 }
74930bb6 692
f9d1ab39
JB		 693 ret = i2c_add_driver(&lm4857_i2c_driver);
694
b6471305 695 if (ret != 0)
d280289e 696 platform_device_unregister(neo1973_snd_device);
74930bb6
GG		 697
698 return ret;
699}
700
701static void __exit neo1973_exit(void)
702{
1894c59f
TN		 703 DBG("Entered %s\n", __func__);
704
6b9a9b32 705 i2c_del_driver(&lm4857_i2c_driver);
74930bb6
GG		 706 platform_device_unregister(neo1973_snd_device);
707}
708
709module_init(neo1973_init);
710module_exit(neo1973_exit);
711
712/* Module information */
443590e6 713MODULE_AUTHOR("Graeme Gregory, graeme@openmoko.org, www.openmoko.org");
74930bb6
GG		 714MODULE_DESCRIPTION("ALSA SoC WM8753 Neo1973");
715MODULE_LICENSE("GPL");
Linux 6.x block layer and io_uring tree(s)